HORIZONTAL
SCREENING

Horizontal Screening

Horizontal screening is one of the essential ingredients for today's grower. The use of thermal / shade screens is the best way of achieving this.

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Some growers have more than one screening system, (one energy & one shade), to help reduce energy costs.

There are two types of operating systems available for horizontal screening; Rack & Pinion or a Wire Driven system. The Wire Driven system offers advantages for large glasshouse installations, especially blackout screening, as it offers a delay mechanism to ensure complete closure of the screen.

Screens are fabricated from varying types of cloth, ranging from:

• Open weave material, allowing the air to flow through the cloth material, providing a range of shade values, yet low energy saving

• Closed weave material, offering a range of shade values, but also good energy saving

• Energy saving material, which gives high heat saving, yet virtually no shade properties

• Blackout material for day length control, whilst still having energy & shading properties, this material is commonly used in conjunction with supplementary lighting.

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All cloth types are fire retardant to meet with current requirements